Antenna Design with Band Notched Characteristic for UWB Applications

Year 2017, Volume: 7 Issue: 4, 1475 - 1483, 10.10.2017

Hashmatullah Ahmadzai Saeid Karamzadeh

Abstract

In this paper, a small, low cost and light weight monopole antenna is presented with notched characteristic for Ultra Wideband application. The patch of the antenna consists of sides that are cut a half circle and a rectangle. A narrow rectangular slot has been made to notch the undesired frequency band. The ground plane of the proposed antenna has a rectangular cut which is useful for Impendence matching. The antenna is fed with 50 Ω micro-strip feedline. It has been printed on FR4 substrate which has the relative permittivity of Ꜫr=4.4 and the thickness of 1mm. The total size of the antenna is (26 ×20×1) mm3. The proposed antenna is working at a larger frequency band from 2.9 GHz to 10.8 GHz and has notch band characteristic at 5 GHz to 5.9 GHz. C band notch can be achieved with a band width from 4GHz to 8GHz by increasing the slot size. Some of the simulation results and the characteristics of the proposed antenna are explained in this paper.

Keywords

Monopole antenna, ultra wideband, notch band, rectangle slotted

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